Acidmods

Console Modding------ ( Here you can talk about your favorite Consoles ) => PSP's => PSP Phat (1000) => Topic started by: Arioch_76 on May 16, 2008, 05:35:34 AM

Title: problem with mounting LM386
Post by: Arioch_76 on May 16, 2008, 05:35:34 AM
Hi , So I Have a problem with red LED end LM386 , the red LED are on all the time , I try with blu LED and my mounting work fine.
 I think the problem is here :
The red LED ask 1.85V and 0.03A , and the blue LED ask 3.5V and 0.02A ....
what can I do to that LED react as it should sound, changing values resistances? but what values I muste take ? :dntknw:
If someone has already been mounting with red LED , thank for giving me the values he used ... :beg:

Thanks a lot for your answer  :help:

PS : Sorry for my poor english , I'm a froggy   :huh:
Title: Re: problem with mounting LM386
Post by: glenng82 on May 16, 2008, 05:41:56 AM
did u use the right resistors? how did u wire it? i used red and had no problems.
Title: Re: problem with mounting LM386
Post by: Arioch_76 on May 16, 2008, 05:51:23 AM
I use 30K resistor for pin2 and 191K for pin3 (+/- 1%), I wire it directly on the LM , my mounting work fine with Blue LEd , with red LED nothing happen LED are all the time ON ....

What the voltage of your LED ?
Title: Re: problem with mounting LM386
Post by: glenng82 on May 16, 2008, 06:09:05 AM
not real sure never checked just got them and put them in, umm are all wires connected to lm386 good, how are you swapping between blue and red?
Title: Re: problem with mounting LM386
Post by: Totonzio on May 16, 2008, 06:19:01 AM
you use 10 ohm on positive wire led!  red led  working ;)
Title: Re: problem with mounting LM386
Post by: Arioch_76 on May 16, 2008, 06:45:31 AM
Thanks but I have already tried to save a resistance of 10 Ohm, 20 Ohm, 60 Ohm .... positive on the base of the LED, but without result.
For the sawp between blue and red , unsolder (??) the red LED and solder the blue LED on the same cable....
Title: Re: problem with mounting LM386
Post by: Totonzio on May 16, 2008, 08:35:17 AM
parallele led blue and one resistence 10 ohm for red led and parallele ! the led blue is 3.5 v the led red is 2.5!  for 191k 0hm i have use a 180 k and potentiometre 100k!    :drunk: 

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